194928769 has 8 divisors (see below), whose sum is σ = 224252288. Its totient is φ = 165974400.

The previous prime is 194928757. The next prime is 194928781. The reversal of 194928769 is 967829491.

It is an interprime number because it is at equal distance from previous prime (194928757) and next prime (194928781).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194928769 - 2²³ = 186540161 is a prime.

It is a super-2 number, since 2×194928769² = 75994449967710722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194988769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91152 + ... + 93265.

It is an arithmetic number, because the mean of its divisors is an integer number (28031536).

Almost surely, 2^194928769 is an apocalyptic number.

It is an amenable number.

194928769 is a deficient number, since it is larger than the sum of its proper divisors (29323519).

194928769 is a wasteful number, since it uses less digits than its factorization.

194928769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184575.

The product of its digits is 1959552, while the sum is 55.

The square root of 194928769 is about 13961.6893318824. The cubic root of 194928769 is about 579.8183824933.

The spelling of 194928769 in words is "one hundred ninety-four million, nine hundred twenty-eight thousand, seven hundred sixty-nine".